Skip to Main content Skip to Navigation
Theses

Extraction de séquences numériques dans des documents manuscrits quelconques

Abstract : Within the framework of the automatic processing of incoming mail documents, we present in this thesis the conception and development of a numerical field extraction system in weakly constrained handwritten documents. Although the recognition of isolated handwritten entities can be considered as a partially solved problem, the extraction of information in images of complex and free-layout documents is still a challenge. This problem requires the implementation of both handwriting recognition and information extraction methods inspired by approaches developed within the field of information extraction in electronic documents. Our contribution consists in the conception and the implementation of two different strategies: the first extends classical handwriting recognition methods, while the second is inspired from approaches used within the field of information extraction in electronic documents. The results obtained on a real handwritten mail database show that our second approach is significantly better. Finally, a complete, generic and efficient system is produced, answering one of the emergent perspectives in the field of the automatic reading of handwritten documents: the extraction of complex information in images of documents.
Complete list of metadatas

Cited literature [175 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00143090
Contributor : Clément Chatelain <>
Submitted on : Tuesday, April 24, 2007 - 11:37:45 AM
Last modification on : Friday, October 23, 2020 - 4:42:44 PM
Long-term archiving on: : Friday, September 21, 2012 - 2:22:16 PM

Identifiers

  • HAL Id : tel-00143090, version 1

Citation

Clément Chatelain. Extraction de séquences numériques dans des documents manuscrits quelconques. Traitement du signal et de l'image [eess.SP]. Université de Rouen, 2006. Français. ⟨tel-00143090⟩

Share

Metrics

Record views

472

Files downloads

1985